My 3 bike group walk around with Go Pro versus I Phone 7+

i posted a similar video with I Phone 7+ in 4K and wanted to see the difference in quality between the two. i think the GoPro may look better, but it in retrospect,,,the GoPro doesn't have image stabilization. Bikes featured in group walk around: 2017 Ducati Panigale 1299, 2013 CBR 1000RR REPSOL, 2016 BMW S1000RR premium package. Accessories: comfort seat, black series exhaust, power commander v, sc project exhaust with carbon tip